20855439

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{1741}}^1$

素因数の和:1780

約数の個数: 24

約数和(自身を含む): 33153744

約数和(自身を除く): 12298305

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 1331, 1741, 3993, 5223, 11979, 15669, 19151, 57453, 172359, 210661, 631983, 1895949, 2317271, 6951813, 20855439]

約数ペア:

[(1, 20855439), (3, 6951813), (9, 2317271), (11, 1895949), (33, 631983), (99, 210661), (121, 172359), (363, 57453), (1089, 19151), (1331, 15669), (1741, 11979), (3993, 5223)]